Testbook Logo
Exams SuperCoaching Test Series Skill Academy
More
English
Hindi

Question

Download Solution PDF

Two numbers are in the ratio 3 : 4. Their L.C.M. is 84. The greater number is

This question was previously asked in
WEBCSC 05/2021 Common Official Paper (Morning Shift)
Download PDF Attempt Online
View all WEBCSC Bank Assistant Papers >
  1. 21
  2. 24
  3. 28
  4. 84

Answer (Detailed Solution Below)

Option 3 : 28
Free Tests
View all Free tests >
Free
WEBCSC Assistant : General Knowledge and Current Affairs
0.2 K Users
20 Questions 20 Marks 25 Mins
Start Now

Detailed Solution

Download Solution PDF

Given:

Ratio of two numbers = 3 : 4

L.C.M. of the numbers = 84

Calculation:

Let the numbers be 3x and 4x respectively

LCM = 84

x × 3 × 4 = 12x

⇒ LCM number = common factor (other factors)

⇒ 12x = 84

⇒ x = 7

∴ Number are = 3x = 7 × 3 = 21

4x = 7 × 4 = 28

∴ Greater number is 28

Download Solution PDF
Latest WEBCSC Bank Assistant Updates

Last updated on Feb 4, 2025

-> The WEBCSC Bank Assistant 2025 Notification is out, announcing 85 vacancies.

-> Candidates can apply online from 28th January to 27th February 2025.

-> The selection process includes CBT, WBT, and Interview.

-> This exam, conducted by the West Bengal Cooperative Service Commission, recruits candidates for banking positions in cooperative banks.

‹‹ Previous Ques
Next Ques ››

More LCM and HCF Questions

Q1.Find the highest length which can be used to measure exactly the lengths 48 m, 72 m, 96 m and 120 m.
Q2.Seven bells ring at intervals of 2, 3, 4, 6, 8, 9 and 12 minutes, respectively. They started ringing simultaneously at 7.10 in the morning. What will be the next time when they all ring simultaneously?
Q3.If the least common multiple of 85 and 255 can be expressed as 85R+255, then the value of R is:
Q4.Two numbers X and Y are in ratio as 8 : 13. The LCM of these two numbers is 832. How much the value of Y is more than X?
Q5.What is the greatest number that will divide 446 and 487, leaving remainders 9 and 12, respectively?
Q6.Three friends are exercising together. The first friend runs a lap in 12 minutes, the second in 18 minutes, and the third in 24 minutes. If they all start running together, after how many minutes will they all finish a lap together again?
Q7.A gardener has 1826 red flowers and 2486 yellow flowers. He wants to arrange them into the largest possible equal groups such that each group has the same number of red and yellow flowers. What is the maximum number of flowers in each group?
Q8.The difference of two numbers is \( \frac{1}{5} \) of their sum, and their sum is 45. Find the LCM.
Q9.Three bikes, A, B and C, start racing at the same time and from the same point in the same direction in a circular path. A completes a round in 56 sec, B in 48 sec and C in 70 sec . After what time will they meet again at the starting point?
Q10.An electronic device makes a beep after every 60 sec. Another device makes a beep after every 62 sec. They beeped together at 10 a.m. The next time, when they would beep together at the earliest is:

More Number System Questions

Q1.There are three numbers m, n, and p, such that sum of m and n is 144, sum of thrice of n and five times of p is 464, and sum of p and m is 160, then what is the value of p?
Q2.The prime number nearest to 80 is -
Q3.What value should come in the place of question mark (?) in the following question? \(\rm \sqrt{12.96}\times \sqrt{7.84}\div \sqrt{3.24}\times \sqrt{31.36}=?\)
Q4.Which of the following is divisible by 11? 
Q5.Find the value of X in the given image. \(\rm X=\sqrt{587-\sqrt{121}}\div \sqrt{2316-\sqrt{180-\sqrt{1296}}} \)
Q6.How many numbers up to 700 are divisible by both 3 and 5?
Q7.A number divided by 11 leaves a remainder 3. What is the remainder when the square of the same number is divided by 11?
Q8.Find the smallest 4 digit number which is divided by 8,10,12,15,20 and leaves the remainder as 7. 
Q9.Find the remainder when 2332 divided by 529.
Q10.If N5921 is divisible by 11, find the value of the smallest natural number N.
Suggested Test Series
View All >
WB SSC Group C & D Combined Mock Test Series 2025
105 Total Tests with 1 Free Tests
Start Free Test
WBCS (Executive) Prelims + Mains Mock Tests 2025
151 Total Tests with   2 Free Tests
Start Free Test

More Quantitative Aptitude Questions

Q1.Perimeter of a rectangular field is equal to the perimeter of a triangular field whose sides are in the ratio 3:2:4 respectively. lf area of rectangular field is 500 m2 and sides are in the ratio 5:4 respectively, then calculate the longer side of the triangular field.
Q2.A cistern has an inlet pipe and an outlet pipe. Inlet pipe can fill three-fourth of the cistern in 24 minutes while outlet pipe can empty the one-third filled cistern in 16 minutes. If both the pipes are opened together, then the cistern will be completely filled in-
Q3.In a family, three sons were born for every 3 years one after the other. If the ratio of present ages of father and the eldest son is 15:7 and the average of the present ages of the 3 sons is 18 years. What will be the ratio of the ages of the father and the youngest son after 5 years?
Q4.Train A of length 80m while moving crosses a pole in 16 seconds. lf it is known that the lengths of train B and train A is in the ratio of 3:1, then how long would it take train B to cross a platform which is half the length of train A if the speed of train B is same as that of train A?
Q5.Can A and Can B contain a mixture of soda and water in the ratio of 5 : 3 and 7 : 2 respectively If soda and water are taken out in the ratio of P : Q from can A and B respectively to form a new mixture in which the ratio of soda and water is 12 : 5 respectively, then find the value Of P:Q?
Q6.A boat can covers a certain distance in upstream and same distance in downstream in total of 7 hours 48 minutes, If upstream speed of the boat is 62.5%. of downstream speed of the boat and speed of the stream is 3 km/h, what is the total distance covered by the boat?
Q7.M and R went for shopping and bought two sarees each at different cost. Cost price of saree bought by R is Rs.250 more than the cost price of saree bought by M. Shopkeeper earned a profit of 20% on selling both the sarees together to R and M which he bought them at total Rs.6000. At what cost did M buy saree?
Q8.There are three numbers m, n, and p, such that sum of m and n is 144, sum of thrice of n and five times of p is 464, and sum of p and m is 160, then what is the value of p?
Q9.While calculating average marks of 60 students, the two digits of original marks of a student are written reversed and thereby average of marks is increased by 0.6 Find the difference between the two digits of marks of the student?  
Q10.Simple interest received on a certain sum at a rate of simple interest of 5% for 2 years is Rs.780. If the rate of interest remains same, what will be the total amount at the time of withdrawal at the end of 5 years.  
Exams
Test Series
SuperCoaching
Previous Year Papers
Latest Updates
MCQ Questions
Testbook Products & Resources for Students
Testbook USA
Books
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
[email protected]
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Our Apps
Follow us on
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Get Free Access Now
Hot Links： teen patti win teen patti master teen patti download